to try to keep crowd control. and they have set up a complete perimeter around rockefeller center. we couldn't get -- we couldn't get close to radio city music hall and can't get close to the tree and the police had barricades so as protesters came, you were stacked into certain areas. there are protesters here. [ chanting ] >> and they are going to be here for a while. a lot of them holder folks, students. we are hearing there will be protesters coming out at 7:00 and a second wave of all of this going on through the night, getting toward the christmas tree. the police are in full force. >> and i hear them behind you, yelling no justice, no tree. this lighting of the rockefeller center christmas tree will be broadcast around the nation and many protesters want to get there and some want to disrupt that. what did police do to try to put